CVE-2024-27398— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
存在公开或 AI PoC，应优先验证
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于存在释放后重用问题。
可能的 ATT&CK 技术 1 AI
T1203 · Exploitation for Client Execution影响版本矩阵 27
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 48669c81a65628ef234cbdd91b9395952c7c27fe< 1b33d55fb7355e27f8c82cd4ecd560f162469249 |
affected |
37d7ae2b0578f2373674a755402ee722e96edc08< 3212afd00e3cda790fd0583cb3eaef8f9575a014 |
affected | ||
a1073aad497d0d071a71f61b721966a176d50c08< 33a6e92161a78c1073d90e27abe28d746feb0a53 |
affected | ||
ba316be1b6a00db7126ed9a39f9bee434a508043< 6a18eeb1b3bbc67c20d9609c31dca6a69b4bcde5 |
affected | ||
ba316be1b6a00db7126ed9a39f9bee434a508043< bfab2c1f7940a232cd519e82fff137e308abfd93 |
affected | ||
ba316be1b6a00db7126ed9a39f9bee434a508043< 012363cb1bec5f33a7b94629ab2c1086f30280f2 |
affected | ||
ba316be1b6a00db7126ed9a39f9bee434a508043< 50c2037fc28df870ef29d9728c770c8955d32178 |
affected | ||
ba316be1b6a00db7126ed9a39f9bee434a508043< 483bc08181827fc475643272ffb69c533007e546 |
affected | ||
| … +19 条更多 | |||
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一、 漏洞 CVE-2024-27398 基础信息
漏洞信息
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Vulnerability Title
Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout
When the sco connection is established and then, the sco socket
is releasing, timeout_work will be scheduled to judge whether
the sco disconnection is timeout. The sock will be deallocated
later, but it is dereferenced again in sco_sock_timeout. As a
result, the use-after-free bugs will happen. The root cause is
shown below:
Cleanup Thread | Worker Thread
sco_sock_release |
sco_sock_close |
__sco_sock_close |
sco_sock_set_timer |
schedule_delayed_work |
sco_sock_kill | (wait a time)
sock_put(sk) //FREE | sco_sock_timeout
| sock_hold(sk) //USE
The KASAN report triggered by POC is shown below:
[ 95.890016] ==================================================================
[ 95.890496] BUG: KASAN: slab-use-after-free in sco_sock_timeout+0x5e/0x1c0
[ 95.890755] Write of size 4 at addr ffff88800c388080 by task kworker/0:0/7
...
[ 95.890755] Workqueue: events sco_sock_timeout
[ 95.890755] Call Trace:
[ 95.890755] <TASK>
[ 95.890755] dump_stack_lvl+0x45/0x110
[ 95.890755] print_address_description+0x78/0x390
[ 95.890755] print_report+0x11b/0x250
[ 95.890755] ? __virt_addr_valid+0xbe/0xf0
[ 95.890755] ? sco_sock_timeout+0x5e/0x1c0
[ 95.890755] kasan_report+0x139/0x170
[ 95.890755] ? update_load_avg+0xe5/0x9f0
[ 95.890755] ? sco_sock_timeout+0x5e/0x1c0
[ 95.890755] kasan_check_range+0x2c3/0x2e0
[ 95.890755] sco_sock_timeout+0x5e/0x1c0
[ 95.890755] process_one_work+0x561/0xc50
[ 95.890755] worker_thread+0xab2/0x13c0
[ 95.890755] ? pr_cont_work+0x490/0x490
[ 95.890755] kthread+0x279/0x300
[ 95.890755] ? pr_cont_work+0x490/0x490
[ 95.890755] ? kthread_blkcg+0xa0/0xa0
[ 95.890755] ret_from_fork+0x34/0x60
[ 95.890755] ? kthread_blkcg+0xa0/0xa0
[ 95.890755] ret_from_fork_asm+0x11/0x20
[ 95.890755] </TASK>
[ 95.890755]
[ 95.890755] Allocated by task 506:
[ 95.890755] kasan_save_track+0x3f/0x70
[ 95.890755] __kasan_kmalloc+0x86/0x90
[ 95.890755] __kmalloc+0x17f/0x360
[ 95.890755] sk_prot_alloc+0xe1/0x1a0
[ 95.890755] sk_alloc+0x31/0x4e0
[ 95.890755] bt_sock_alloc+0x2b/0x2a0
[ 95.890755] sco_sock_create+0xad/0x320
[ 95.890755] bt_sock_create+0x145/0x320
[ 95.890755] __sock_create+0x2e1/0x650
[ 95.890755] __sys_socket+0xd0/0x280
[ 95.890755] __x64_sys_socket+0x75/0x80
[ 95.890755] do_syscall_64+0xc4/0x1b0
[ 95.890755] entry_SYSCALL_64_after_hwframe+0x67/0x6f
[ 95.890755]
[ 95.890755] Freed by task 506:
[ 95.890755] kasan_save_track+0x3f/0x70
[ 95.890755] kasan_save_free_info+0x40/0x50
[ 95.890755] poison_slab_object+0x118/0x180
[ 95.890755] __kasan_slab_free+0x12/0x30
[ 95.890755] kfree+0xb2/0x240
[ 95.890755] __sk_destruct+0x317/0x410
[ 95.890755] sco_sock_release+0x232/0x280
[ 95.890755] sock_close+0xb2/0x210
[ 95.890755] __fput+0x37f/0x770
[ 95.890755] task_work_run+0x1ae/0x210
[ 95.890755] get_signal+0xe17/0xf70
[ 95.890755] arch_do_signal_or_restart+0x3f/0x520
[ 95.890755] syscall_exit_to_user_mode+0x55/0x120
[ 95.890755] do_syscall_64+0xd1/0x1b0
[ 95.890755] entry_SYSCALL_64_after_hwframe+0x67/0x6f
[ 95.890755]
[ 95.890755] The buggy address belongs to the object at ffff88800c388000
[ 95.890755] which belongs to the cache kmalloc-1k of size 1024
[ 95.890755] The buggy address is located 128 bytes inside of
[ 95.890755] freed 1024-byte region [ffff88800c388000, ffff88800c388400)
[ 95.890755]
[ 95.890755] The buggy address belongs to the physical page:
[ 95.890755] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800c38a800 pfn:0xc388
[ 95.890755] head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 95.890755] ano
---truncated---
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于存在释放后重用问题。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2024-27398 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|---|---|---|
| 1 | CVE-2024-27398 POC | https://github.com/secunnix/CVE-2024-27398 | POC详情 |
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CVE-2024-27398 邮件列表归档 (3)
CVE-2024-27398 其他参考 (8)
同批安全公告 · Linux · 2024-05-13 · 共 6 条
| CVE-2023-52656 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27401 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27400 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27399 | Linux kernel 安全漏洞 | |
| CVE-2023-52655 | Linux kernel 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2024-27398
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